1998JH4

1999RB81, 1999RY178, 40027, J98J04H, J99R81B, J99RH8Y

All data for this body: [vot]

MPC data
Name (number) 1998JH4 (40027)
Packed designation 40027
a 2.69250
e 0.04559
i / sin(i) 3.7394 / 0.06522
q 2.56974
Q 2.81527
ω 209.3679
Node 85.4504
m 73.3418
n 0.2231
Epoch 2459600.5
nobs 1271
nopp 18
Years observed 1998-2021
rms 0.76
Best values
[raw, vot]

Value Standard error
Parent Henan (2085)
 
ap 2.692
ep 0.050
sin(ip) 0.046
Value Standard error
G 0.150
H 15.110
Mass
D 2.98 0.572
pV 0.218 0.0814
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
2085 Henan 532 Henan -0.1000 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
2.6923 0.0497 0.0464 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Jan-2022
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
2.98 0.572 0.572 Masiero 2011ApJ...741...68M NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.218 0.0814 0.0814 Masiero 2011ApJ...741...68M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2022-01-18 MPC-2022-01-18 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
15.11 MPC-2022-01-18 MPC-2022-01-18 Phot